/*
 * Copyright (c) 2009, Hamish Morgan. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the University of Sussex nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package locusts.common.entities;

import java.io.Serializable;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;

/**
 *
 * @author Hamish Morgan
 */
public class EntityDataList implements Map<EntityType, EntityData>, Cloneable,
        Serializable, Iterable<EntityData> {

    private static final int MAX_TYPE_ID = 100;
    private CopyOnWriteArrayList<EntityData> data;

    protected EntityDataList(CopyOnWriteArrayList<EntityData> data) {
        this.data = data;
    }

    public EntityDataList() {
        this(new CopyOnWriteArrayList<EntityData>());
    }

    public EntityDataList(EntityDataList that) {
        this();
        data.addAll(that.data);
    }

    private final void growTypesList(int id) {
        if (id < 0 || id > MAX_TYPE_ID)
            throw new IllegalArgumentException(
                    "Argument id must be between 0 and " + MAX_TYPE_ID);
        while (data.size() <= id)
            data.add(null);
    }

    public int size() {
        return data.size();
    }

    public boolean isEmpty() {
        return data.isEmpty();
    }

    public boolean containsKey(Object key) {
        if (!(key instanceof EntityType))
            return false;
        return containsKey(((EntityType) key));
    }

    public boolean containsKey(EntityType key) {
        return containsKey(key.getId());
    }

    public boolean containsKey(int id) {
        return data.size() > id && data.get(id) != null;
    }

    public boolean containsValue(Object value) {
        return containsValue((EntityData) value);
    }

    public boolean containsValue(EntityData value) {
        return data.contains(value);
    }

    public EntityData get(Object key) {
        return (key instanceof EntityType) ? get((EntityType) key) : null;
    }

    public EntityData get(EntityType key) {
        return get(key.getId());
    }

    public EntityData get(Entity e) {
        return get(e.getTypeId());
    }
    
    public EntityData get(int id) {
        return id < data.size() ? data.get(id) : null;
    }


    public EntityData put(EntityType key, EntityData value) {
        return put(key.getId(), value);
    }

    public EntityData put(int id, EntityData value) {
        growTypesList(id);
        return data.set(id, value);
    }

    public EntityData remove(Object key) {
        return (key instanceof EntityType) ? remove((EntityType) key) : null;
    }

    public EntityData remove(EntityType key) {
        return remove(key.getId());
    }

    public EntityData remove(int id) {
        return id < data.size() ? data.remove(id) : null;
    }

    public void putAll(Map<? extends EntityType, ? extends EntityData> t) {
        for(EntityType et : t.keySet()) 
            put(et, t.get(et));
    }

    public void clear() {
        data.clear();
    }

    public Set<EntityType> keySet() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    public Collection<EntityData> values() {
        return data;
    }

    public Set<Entry<EntityType, EntityData>> entrySet() {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    public Iterator<EntityData> iterator() {
        return data.iterator();
    }

    @Override
    public EntityDataList clone() {
        return new EntityDataList(this);
    }

}
